13211037445 has 8 divisors (see below), whose sum is σ = 15907353336. Its totient is φ = 10532757696.

The previous prime is 13211037439. The next prime is 13211037461. The reversal of 13211037445 is 54473011231.

It can be written as a sum of positive squares in 4 ways, for example, as 5807811681 + 7403225764 = 76209^2 + 86042^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13211037445 - 2¹³ = 13211029253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4507422 + ... + 4510351.

It is an arithmetic number, because the mean of its divisors is an integer number (1988419167).

Almost surely, 2^13211037445 is an apocalyptic number.

It is an amenable number.

13211037445 is a deficient number, since it is larger than the sum of its proper divisors (2696315891).

13211037445 is an equidigital number, since it uses as much as digits as its factorization.

13211037445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9018071.

The product of its (nonzero) digits is 10080, while the sum is 31.

Adding to 13211037445 its reverse (54473011231), we get a palindrome (67684048676).

The spelling of 13211037445 in words is "thirteen billion, two hundred eleven million, thirty-seven thousand, four hundred forty-five".